This get's weirder by the minute 'Kenz' - I assume you left some link or other for me in this post, but I can't even see that!
I think we'd better forget it for now, it's not like I need to see the banner to enjoy posting on here.
Let me ask you, do you use FireFox? and if so, in the Options menu, under the CONTENT tab, do you have "Load Images --- For the originating web site only" checked?
If that's the case, you can:
1) Uncheck the "For the originating web site only" box, or
2) Add "http://www.nationalsforum.net/" to the Exceptions list.
I'm not sure if that will solve your problem, but a shot in the dark is better than no shot at all...
'Load Images' is checked, but "For the Originating Website" isn't. Plus I added the forum URL to the Exceptions 'allow' list as you suggested....still no banner showing!
Thanx anyway, it was worth a try.